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SanDisk · PCIe 4.0 · 4000 GB

SANDISK Optimus 5100 4TB

M.2 2280 · QLC NAND · Host-Memory-Buffer (HMB)

Performance
70
Perf / price
17
Capacity value
70
Amazon
$600
SANDISK Optimus 5100 4TB
View SANDISK Optimus 5100 4TB Gallery in high resolution
$600
Not currently available Updated Oct 2, 2026
Performance69.9
Performance / price17.5
Capacity value69.9
$600 on Amazon Add this SSD to a build Compare this SSD SSD table

Written analysis

SANDISK Optimus 5100 4TB at a glance

The SANDISK Optimus 5100 4TB is a 4000 GB M.2 2280 SSD using PCIe 4.0 x4, NVMe 2.0. The controller is WD Polaris 3. Flash type is 3D QLC NAND (BiCS8). Cache is listed as Host-Memory-Buffer (HMB).

Rated sequential throughput is 6900 MB/s read and 6700 MB/s write. Random throughput is 900K read IOPS and 1100K write IOPS. The calculated specification score is 69.9.

Best fit: General storage workloads where compatibility and price matter more than peak transfer rates.

Endurance and thermals

Rated endurance is 1200 TBW, or approximately 300 TBW per TB of capacity. The listed warranty is 5 years.

Current value

At $600, the drive costs $150.00 per TB. Performance / price is 17.5 and capacity value is 69.9. Compare these values with nearby drives below; interface generation and headline speed alone do not determine value.

Drive data

Full specifications

Interface, flash, controller, cache, throughput, endurance, power, warranty, and value in one technical sheet.

General

Manufacturer
SanDisk
SSD
SANDISK Optimus 5100 4TB
Part number
SDSP51400TAN
Model
SDSP51400TAN
Capacity
4000 GB
Form factor
M.2 2280
Launch price
—
Amazon price
$600
Amazon availability
Not currently available
Price updated
Oct 2, 2026

Performance

Sequential read
6900 MB/s
Sequential write
6700 MB/s
Random read
900K IOPS
Random write
1100K IOPS

Value

Amazon price
$600
Price / TB
$150.00
Performance / price
17.5
Capacity value
69.9

Hardware & cache

Interface
PCIe 4.0 x4, NVMe 2.0
Interface generation
PCIe 4.0
Controller
WD Polaris 3
NAND
3D QLC NAND (BiCS8)
Process
16
Cache type
Host-Memory-Buffer (HMB)
DRAM
Host-Memory-Buffer (HMB)
DRAM capacity
64 MB
DRAM speed
2000 MT/s
SLC cache
Dynamic

Durability & power

Endurance
1200 TBW
Endurance / TB
300 TBW
Warranty
5 years
Idle power
—
Active power
—

Additional information

Color
Black

Amazon

Price history

Nearby performance

Similar SSDs

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Discussion

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Vendor copy

Amazon listing details

Marketplace feature text kept for reference. Structured specifications above are the source for scores and comparisons.

SPEED UP PROJECTS. Launch creator applications fast with uncompromising PCIe 4.0 read speeds up to 7,100MB/s,[2] (1TB and 2TB[1] models) and write speeds up to 6,700MB/s[2] (1TB[1]-4TB[1] models).

CREATE AND STORE MORE. Make more room for your 4K videos and high-resolution images with capacities from 500GB[1] up to 4TB[1] on M.2 2280 built with our trusted 8th generation SANDISK BiCS QLC 3D CBA NAND.

IT GOES WHERE YOU GO. With an all-new power efficient design, your drive delivers high performance with low power, giving you more time to be productive while on the go.

UNCOMPROMISED RELIABILITY. With up to 1,200 TBW[3] (4TB[1] model) endurance rating, your drive is designed for creators.

KEEP YOUR DRIVE UPDATED. Monitor your SSD’s performance and check for updates with the downloadable SANDISK Dashboard application.[5]

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